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Showing posts from February, 2019

Show HN: I wrote a book about WebAssembly https://ift.tt/2TliBdt

Show HN: I wrote a book about WebAssembly Hey HN! I've been working on a book about WebAssembly over the last few months, and it's finally available at http://levelupwasm.com ! Why a book on WebAssembly you ask? Well... WebAssembly is awesome (obviously ) but it's certainly not the easiest thing to learn. So I wrote this book as a practical intro to using WebAssembly in your web apps. I would appreciate any feedback! February 28, 2019 at 10:38AM
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Launch HN: Searchlight (YC W19) – Hiring based on past performance, not resumes https://ift.tt/2Tavk3t

Launch HN: Searchlight (YC W19) – Hiring based on past performance, not resumes Hi HN community! We’re Anna and Kerry, co-founders of Searchlight ( https://ift.tt/2IWrmHh ). Our software helps candidates be judged by their past performance rather than their resume or where they went to school. We built this product to help job candidates and hiring managers. With platforms like Linkedin and Indeed, hundreds of applicants with indistinguishable resumes apply for the same job with just one click. Kerry and I both have backgrounds in software engineering, and we were frustrated by how time-strapped hiring managers increasingly over-index on the “snob test” (a.k.a. where the candidate went to school) or contrived technical screens [1][2]. We’re also twin sisters who went to the same school and worked at the same companies. We look indistinguishable on paper, so we are especially keen to bring a new product to the hiring space that will allow candidates to express their individuality beyond...
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Launch HN: Fuzzbuzz (YC W19) – Fuzzing as a Service https://ift.tt/2XsKsHW

Launch HN: Fuzzbuzz (YC W19) – Fuzzing as a Service Hey HN, We’re Everest, Andrei and Sabera, the founders behind Fuzzbuzz ( https://fuzzbuzz.io ) - a fuzzing as a service platform that makes fuzzing your code as easy as writing a unit test, and pushing to GitHub. Fuzzing is a type of software testing that generates & runs millions of tests per day on your code, and is great at finding edge cases & vulnerabilities that developers miss. It’s been used to find tens of thousands of critical bugs in open-source software ( https://ift.tt/2fW71Bd ), and is a great way to generate tests that cover a lot of code, without requiring your developers to think of every possibility. It achieves such great results by applying genetic algorithms to generate new tests from some initial examples, and using code coverage to track and report interesting test cases. Combining these two techniques with a bit of randomness, and running tests thousands of times every second has proven to be an incredi...
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Show HN: AI-Powered Web Collections https://ift.tt/2XpJlc9

Show HN: AI-Powered Web Collections Hi! I've just deployed a new feature to my search engine called "Web Collections". They are a slices of the WWW index, subsets. You decide their size. They are created from the advanced query parser GUI that appear after you query the WWW index. From the GUI, simply give your collection a name and click "Create collection" and the result set from the current query will be appended to your named collection. A link will appear leading you to a search GUI that will let you query this new collection as soon as it's been persisted. All collections can spawn new collections because all are queryable. You may create collections from data that doesn't originate from the WWW index but from somewhere else by utilizing the HTTP API to create/append to/read from and query your collections, freely, right now. There is one last feature to implement before my intended MVP is done and that is to be able to reference collections in the...
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Launch HN: OurWorldInData (YC W19 Nonprofit) – Data on World’s Largest Problems https://ift.tt/2NtenLF

Launch HN: OurWorldInData (YC W19 Nonprofit) – Data on World’s Largest Problems Hi HN! We’re Hannah, Esteban, Jaiden and Max, the founders of Our World in Data ( https://ift.tt/1qL7FUP ). We’re a nonprofit in the YC W19 batch. Our World in Data is a website that shows how and why global living conditions and the earth's environment are changing. Is the world becoming more violent? Is an end to poverty possible? It's hard to know because daily news focuses on negative single events, and misses long-lasting changes that reshape the world. We’re a group of researchers from the University of Oxford trying to solve this problem. We bring together data and research from many different sources often buried under jargon in static, outdated documents. We present a global perspective on living conditions and environmental change through interactive data visualizations and short explainers. Max started Our World in Data in 2013 whilst working as a researcher at the University of Oxford. T...
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Show HN: A rap song about the struggles of finishing a side project https://ift.tt/2SmDJeT

Show HN: A rap song about the struggles of finishing a side project Song url: https://www.youtube.com/watch?v=_2GT2PCUN3Q Quick background on the project: I'm a full time programmer and I love making rap music. I see a lot of humor in the profession/industry, and thought it would be fun to combine the two. I'm always open to feedback on audio quality/topic ideas/ways to get more exposure/etc! I am also open to collaboration with beat makers/videographers/producers! February 23, 2019 at 11:20AM
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Show HN: Free BinanceReports Day Trading Tool https://ift.tt/2U5aIWS

Show HN: Free BinanceReports Day Trading Tool I built this tool to help understand and quickly find coins on the Binance platform specifically for use with day trading. https://ift.tt/2E70L4o... The problem is there's 100+ coins and i'm not going to constantly scan through each one. So the app has categories like 'big movers with volume' and other filters to help you see what's going on RIGHT NOW. You would obviously use this information to identify potential buy in opportunities. Looking for thoughts and recommendations. February 23, 2019 at 10:26AM
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Launch HN: Modern Labor (YC W19) – Paying People to Learn to Code https://ift.tt/2IrTZLR

Launch HN: Modern Labor (YC W19) – Paying People to Learn to Code Hi HN, We are Modern Labor ( https://modernlabor.com ). We pay you to learn to code. We take people with little or no software skills and pay them a livable wage[1] for 5 months while they learn to code, using our content, most of which is open source. In return graduates pay us 15% of their income for 2 years if they are earning over $40,000. The company is born out of a phenomenon I’ve been fascinated with for a long time: many people wake up every day at 7am to work at a low-paying job but they often have difficulty completing a class that might help their future. For some people, it might just come down to money. A job pays now, a class pays off in the future and only maybe. For many reasons--time, energy, motivation, financial pressures--many choose or are forced to choose the job that pays now and their long-term income sometimes suffers as a result. So we had an idea: Why don’t we just pay people to learn? So that...
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Launch HN: Balto (YC W19) – Fantasy Sports People Bet On https://ift.tt/2NjDkcq

Launch HN: Balto (YC W19) – Fantasy Sports People Bet On Hi everyone! We’re Spencer, Nick, and Joel, co-founders of Balto ( https://ift.tt/2SistAn ). We develop tools for users to organize fantasy sports games that people bet on. Yes, we said it, betting! March Madness brackets, NFL survivor pools, PGA pickems and more. With laws changing, sports gambling is becoming a reality in all states. Last year, 60M brackets were filled out with over $10B dollars wagered for March Madness. This is just one subset of the market we’re going after. Despite these figures, games such as brackets, survivor pools and pickems continue to be overlooked while cumulative wagers climb to an estimated $20B+. Sports run in our DNA. We’re former athletes that come from sports families—Nick’s the son of Hall of Fame Quarterback, Joe Montana. With sports deeply embedded in our lives, we always wondered what happens beyond the playing field the three of us met on. For years, we ran sports betting pools and league...
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Launch HN: Avo (YC W19) – Minimize Human Errors When Implementing Analytics https://ift.tt/2IoxYxC

Launch HN: Avo (YC W19) – Minimize Human Errors When Implementing Analytics Hi HN! We’re Árni, Sölvi, Thora, and Stef – from Iceland. We make Avo ( https://www.avo.app ), a tool built to minimize human errors and overhead when implementing analytics. We’re going for “simple made easy” for maintaining tracking for cross platform consumer products, where a 1% change in conversion funnels makes a difference. It’s a code-generated, type-safe tracking library to accurately implement analytics events that are defined and maintained in a single-source-of-truth web app. We’re solving a personal pain point of broken analytics and how much effort it was to have an overview of what was being tracked across product teams and platforms. We all worked together on a game called QuizUp (100M+ users) where we used metrics to make decisions. The problem was we repeatedly “broke” conversion funnels and retention charts we relied on when we shipped product updates, by mistakenly removing or changing analy...
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Show HN: Mailrecipe limits the number of emails you send to a user to 1 per day http://bit.ly/2XcZ91A

Show HN: Mailrecipe limits the number of emails you send to a user to 1 per day Last week, I spammed my users with emails by mistake. I had written an idempotent method to do a transaction and send a confirmation email. I didn't realize the email call is not idempotent. So, when the transaction failed, it retried again and again and spammed the entire user base with emails. I was so embarrassed and wrote an API layer on top of my email delivery service (SendGrid) to ensure that my users won't get more than 1 email per day, irrespective of my architecture or mistakes. I am publishing it as a public API, in case anyone else needs it: http://bit.ly/2SGcJw2 Have you run into this problem? How did you solve it? February 18, 2019 at 04:45AM
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Show HN: Actiondesk Build powerful automations with just your spreadsheet skills http://bit.ly/2V2bynf

Show HN: Actiondesk Build powerful automations with just your spreadsheet skills Hi HN, I'm Jonathan from Actiondesk ( http://bit.ly/2U2jCEk ) We have built Actiondesk to let anyone build powerful automations using only their spreadsheet skills I'm initially a non-technical person, huge Excel / Sheets and Zapier user. As I was managing an e-commerce company, I saw a few things: - The flexibility that spreadsheets give you to manipulate and transform your data is unrivaled - As we live in a world where data is siloed, the ability of Zapier to interact easily with all your business apps is a must have. I wished I had a tool that would mix the flexibility of Excel and the ease of interacting with data sources and apps of Zapier Actiondesk is the result of that thought process. It lets users: - Import data from various sources (database and business apps), - Run data transformations - Trigger actions in your favorite business applications It's still an early work but it's i...
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Launch HN: Glide (YC W19) – Mobile Apps from Google Sheets http://bit.ly/2SwMMyV

Launch HN: Glide (YC W19) – Mobile Apps from Google Sheets Hello, HN! We're Antonio, David, Jason, and Mark. We’re building Glide ( https://glideapps.com ). Before this we worked on Xamarin, quicktype, Ubuntu, Mono, and GNOME Do :D Glide makes it easy & fun for anyone to create apps without code. Pick a Google Sheet and Glide assembles a polished, data-driven app that you can customize, share as a PWA, and publish to the App Store and Google Play if you desire. We've spent the last decade building developer tools. In that time we've watched thousands of developers struggle to design, implement, and maintain apps, and most developers we know avoid mobile development altogether. Apart from developers, we hear worthy app ideas from non-technical colleagues, friends, and family every day: apps for work, new business ideas, and silly apps just for fun. All of these people can make websites, so why can't they make apps? We were dismayed to find that there are hundreds of ...
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Launch HN: Dyneti (YC W19) – Helping apps stop fraud and process payments faster http://bit.ly/2TMyNS7

Launch HN: Dyneti (YC W19) – Helping apps stop fraud and process payments faster Hi HN, We’re Julia and Lena, the founders of Dyneti ( https://dyneti.com ). Our first product is DyScan, an SDK that helps apps stop fraud and process payments faster by taking a picture of a credit card ( https://youtu.be/3gzDECAsqXs ). We met about 3 years ago at Uber, where we worked together to fight fraud on the platform. (Merchants are liable for fraud losses on digital transactions). One thing we noticed is a problem industry-wide is that while there is tons of investment in detection (rules and models and features), barely any work goes into figuring out what to do to someone after tagging them as fraudulent. Most of the reliable actions - the ones that actually stop fraud - are very severe (e.g., account banning). In order to minimize good users impacted, fraud systems are built to detect very specific fraud behaviors. It is therefore easy for fraudsters to reverse engineer models and rules and it...
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Show HN: Playstore ready PWA app in one click - PWA2APK http://bit.ly/2SyveCI

Show HN: Playstore ready PWA app in one click - PWA2APK Last week we saw a post on HN, mentioning Google Playstore now accepts PWA apps. We thought this could be automated, so non-devs can easily create and upload APK’s of their PWAs. Hence we decided to make a simple tool to ease up the process. Thus PWA2APK http://bit.ly/2GmQTHi was born. It converts Progressive Web Apps (PWAs) to Playstore ready APKs. This was build on top of TWA (Trusted Web Activities), which is available in Chrome version 72 and above. A few days before we shared it on Twitter and got tons of feedback. Many even used PWA2APK to upload their PWA’s to Playstore. After getting feedback, we included source code and certificate, than just the APK file. And finally launching here to get feedback and suggestions for the tool, that we build over the weekend. February 12, 2019 at 03:55AM
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Launch HN: Aura Vision (YC W19) – Google Analytics for Physical Stores http://bit.ly/2Swt6LK

Launch HN: Aura Vision (YC W19) – Google Analytics for Physical Stores We're Daniel, Jaime, and Jonathon - the founders of Aura Vision. ( https://auravision.ai ) Aura Vision is like Google Analytics for physical retail stores. Our mission is to ensure that physical retailers can innovate and improve their stores with data, in the same way their eCommerce counterparts do, while protecting customer privacy. Retail teams often know very little about what shoppers do in-store leading up to a purchase. To try to increase sales, they change layouts, products, and media in their shops based on anecdotal knowledge, and experience. That’s because it’s hard to get good quality data about what consumers actually do in their stores at the moment. Many retailers periodically place people in doorways with clipboards recording shopper demographics and behaviours, which of course is costly and not very scalable. We use existing security cameras in stores to detect the demographics (age, gender, st...
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Show HN: Learn C and its lower levels interactively, in the browser http://bit.ly/2GzxOAW

Show HN: Learn C and its lower levels interactively, in the browser I made a simple virtual machine that runs C in the browser.This project is made as an experiment to see if C can be learned easier if the lower level is covered in paralel. Sandbox: http://bit.ly/2Gz9oHR Tutorial part 1: http://bit.ly/2E49shf More info: http://bit.ly/2GAdMqe Please support this project: http://bit.ly/2E17JJB February 9, 2019 at 07:49PM
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Show HN: Packagr.app – a cloud hosted PyPI server for Python developers http://bit.ly/2tdIJIC

Show HN: Packagr.app – a cloud hosted PyPI server for Python developers Hi, I recently launched Packagr.app - a simple cloud hosted private PIP index which Python developers can use to store and deploy private Python packages: https://www.packagr.app Packagr provides a convenient alternative to open source solutions such as pypiserver and devpi-server and takes care of hosting, authentication and package sharing out of the box Thanks for looking, Chris February 7, 2019 at 11:46PM
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Show HN: Startup with no website (GuerillaClick@gmail.com) http://bit.ly/2SoZaQP

Show HN: Startup with no website (GuerillaClick@gmail.com) Hey there, there are lot of disposable email services, but as I was thinking I realized 95% of the time, I don't care about my inbox. I just want to "verify my email". That's why I created a startup with no website, it's called guerillaclick@gmail.com, it's a credible domain (you don't say) and it will click on any "verify" links you send it to it. You can use aliases to get around of duplicate emails in the target system, so like guerillaclick+eralp@gmail.com guerillaclick+sdfaskdma@gmail.com guerillaclick+111@gmail.com so choose an alias and start using the service! I will provide a website to see the inbox of your alias. (maybe for services who send your pw in the email, but then you might be better off using other established servers.) Gmail API is a bit slow so it might take 30 seconds for email to be received on my end, keep in mind while testing! Best, February 6, 2019 at 03:16AM
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